Measurements:
°C
°F
St. George Island
94°F
N 12 mph
Feels like: 104°F
Precip: 6%
World Resorts USA St. George Island Weather

St. George Island Sea Water Temperature

Current Sea Water Temperature:
+89.8°F
Maximum Sea Water Temperature in August: 93.0°F
Minimum Sea Water Temperature in August: 88.4°F
Average water temperature in August: 90.5°F

Sea Water Temperature for the Last 10 Days:

August 05 89.8°F July 31 90.2°F
August 04 89.6°F July 30 90.4°F
August 03 89.4°F July 29 91.8°F
August 02 90.0°F July 28 90.0°F
August 01 90.2°F July 27 90.2°F

When is the Warmest Sea for St. George Island?

According to our data for the last three years for St. George Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for St. George Island was 90.5°F. The maximum and minimum values were 88.6°F and 92.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for St. George Island was 90.3°F. The maximum and minimum values were 88.2°F and 92.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for St. George Island was 87.3°F. The maximum and minimum values were 85.2°F and 89.0°F respectively.

Best Time to Visit St. George Island
The most sunny months:
October 20 days
March 16 days
April 16 days
The most warm months:
July 91.2 °F
August 90.7 °F
June 88.9 °F
Warmest sea temperature:
August 90.5 °F
July 89.6 °F
September 87.6 °F
The most cold months:
January 59.9 °F
December 63.9 °F
February 64.5 °F
The most rainy months:
August 5 days
July 4 days
September 3 days
The most windy months:
January 9 mph
November 9 mph
March 9 mph

St. George Island on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +102
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
St. George Island
Local time: 14:24
05 aug, wednesday
1500 94°F
N
12 mph
1800 92°F
N
9 mph
2100 86°F
NE
6 mph
06 aug, thursday
0000 82°F
NE
3 mph
0300 82°F
NW
2 mph
0600 82°F
W
2 mph
0900 86°F
W
4 mph
1200 92°F
NW
6 mph